Fire-shutter for doors and windows.



N0- 826,713. PATENTED JULY 24, 1906.

` D T. F. BOWLING. I y FIRE SHUTTBR FOR DOORS AND WINDOWS.

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No. 826,713.' PATBNTED JULY 24, 1906.

. T. P. BOWLING. PIRE SHOTTBR FOR DOORS AND WINDOWS.

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' UNITED STATES PATENT yoEEIoE.

FIRE-SHUTTER FOR DOORS AND WINDOWS.

Specification of Letters Patent.

Patented July 24, 1906.

Application filed May 18. 1906. Serial No. 317,531.

T all whom t may concern,.-

Be it known that I, THOMAS F. DowLING,

i a citizen of the United States, residing at Lincoln, in the county of Lancaster and State of A to W ch the shutter is applied.

A further object of the invention is to provide a fire-shutter of this character adapted yss 'i "ASO to be readily opened and set for automatic operation from the interior of a house or building.

With these and other objects in view the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion, size, and minor details of construction within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is an elevation of a re shutter constructed in accordance with this invention and shown closed in full lines and open in dotted lines. Fig. 2 is a vertical sectional view of the same. Fig. 3 is an elevation illustrating a slight modification of the operating mechanism. Fig. 4 is a detail perspective view illustrating the construction of the spirally-twisted portion of the pintle-rod and the means for rotating the latter.

Like numerals of reference designate corresponding parts in all the figures of the drawings.

y' 1 designates aswinging iire-shutter con- 'stru'cted of heavy sheet metal or other suit- 'able material and adapted to be arranged at windows and doors and provided with hori- "z'ontal'v bars or cleats 2 and 3, which are ex- "te'ndedbeyond the linner or hinged ed e of tlieshut'ter'. y

arranf'gjed'at the top and bottom of the shut- The bars or cleats 2, whic are ter, are also extended from the free edge thereof to provide projections or lugs 4 for engaging hook-shaped catches or keepers 5. The hook-shaped catches or keepers, which are arranged to be engaged by the lugs 4 in the closing movement ofthe shutter, have lower attachment portions, and the shutter in its closing movement closes quickly and then drops into engagement with the catches or kee ers, as hereinafter more fully explained? I v The inner extended ends 6 of the upper and lower bars 2 of the shutter are given a quarter bend or turn to arrange them horizontally, and they are provided with eyes or openings for the reception of a pintle-rod 7, which is vertically movable with the shutter. The ends of the pintle-rod are threaded for the reception of nuts 8, and the intermediate horizontal bars or cleats 3 are secured to the pintle-rod 7 by means of screws 9 or other suitable fastening devices. The front ends of the intermediate bars terminate short of the free edge of the shutter, which is preferably reinforced by a vertical bar or cleat 10.

The intermediate bars or cleats 3 are located above and below the center of the shutter, and the pintle-rod 7 is provided between the extended ends of the said bars or cleats 3 with a flat spirally-twisted portion 11, which is arranged in an oblong opening 12 of a horizontal flange or portion 13 of a member or bracket 14iixed to the wall in line with eyes 16. When the pintle-rod is moved upwardly by the operating mechanism hereinafter described, the fiat intermediate ortion of the pintle-rod is drawn through tile opening of the iixed member or bracket 14. The upper end 15 ofthe fiat portion 11 of the pintle-rod is straight and is arranged in the same plane as the shutter and is of suilicient length to permit the shutter to be lifted out of engagement with the catches or keepers before the pintle-rod is rotated to open the shutter. A further upward movement of the pintle-rod causes the spirally-twisted portion 11 to engage the ixed member 14, whereby the pintle-rod is rotated and the shutter opened. When the shutter is free to close, its weight causes the pintle-rod to move downwardly through the member or bracket, and the said shutter is thereby rapidly closed by the spirally-twisted portion of the pintle-rod, which carries the projections or lugs 4 of the shutter above the keepers or catches 5 be ICO IIO

Y 4other flexible connection by means of a plate t or piece 18, which is bent into substantially L shape to arrange its terminals vertically and horizontally. The horizontal portion of the plate 18 is perforated to receive the inner end of the pintle-rod and is secured to the same by the upper nut 8. The upwardly-exv tending portion of the plate or piece 18 is bent inwardly, and the upper terminal is arra-n ed directly above the pintle-rod and is provi ed with a erforation into which the lower end of the c ain is linked. The lower link 19 of the chain is preferably made ofiusible metal which is adapted to melt at a low temperature and which will release the shutter should the heat exteriorly of the building become dangerous,.

The flexible connection 17 is arranged in a groove 2() of a segment l21, which is lfixed to v the outer end of a horizontal shaft2'2,y and the latter extends through the wall 23 of the building and is journaled in a suit-able pipe or tubev24, as clearly illustrated in Fig. 2 of the drawings. yThe segment is secured by a Setscrew 25 to the outer end of the shaft'22 which is squared to fit a rectangular opening of the segment. 4

The inner end of the Ishalt is Vreduced and squared to iit a rectangular opening or an opy erating-lever 26, which is located within the building and which is adapted to be swung downward from the inclined position shown in dotted lines in Fig. 1 to the vertical position illustrated in the same iigure. The lower end of the lever is provided with a fusible link 27, lhaving a hook for engaging an 'eye 28 and adapted when subjected to interior heat tp release the lever and permit the shutter to c ose.

The shaft l22 is located above the plane of l the upper edge of the shutter, and when there is insufficient space above a door or window to arrange the shaft and lever, =as shown 1n Figs. 1 and 2, the operating mechanism may be located below the shutter, as illustrated in n Fig. 3. y VVhe'n the operating mechanism is arranged below the` shutter, an extended iiexible connection 29 and a pulley S0 are employed. The pulley 30 is located exteriorly of the building at a point above the plane r of the upper edge of the shutter, and the segment 31 is located below the shutter and rev ceives the lower end of the flexible connect-ion 29, which is secured to the segment, at lthe bottom thereof. The segment is mounted on a shaft 32 and is operated by a lever 33, which is swung upwardly from the position shown in Fig. 3 to raise the pintle-rod for opening the shutt'er.

The shutters may be arranged in pairs at a door or window, and as this arrangement involves a mere duplication of that shown and described illustration thereof is deemed unnecessary.

The shutter-operating mechanism may be applied 4directly to a metallic d-oo'i` brother swinging closure, both for opening and closing the same and for automatically operating the vclosure in event of a lire. A v

Having thus fully described "my invention, what I claim 4as new, and desire to 'secure by Letters Patent, is- I u 1. In a device of the 'class described, the combinationwith a swinging closure of aver- -tically`r`r`1ovable lpintle 'carrying the 'cl'c's'ure and provided with a 'spiral portion, and a fixed member arranged to 4engage the spiral portion of the pintle, whereby the said pintle will be rotated when moved vertically. v

A2. In a device of the class described, Ithe combinationwith -a swinging closure, of 'a verticaHy-rnovable pintle-rod carrying 'the fclosure and provided with a 'spiral portion 'and havin a straight p'ortion,'a iixed'meinber arrangel to engage the spiral portion for'ro'tating the pintle-rod, the said straight portion being adapted to permit 'the pintle-rod to be moved vertically a limited 'distance without rotating, anda keeper with which the closure is 'engaged and from which the closure is disengaged by the said limited vertical movement, v r

3. In a device vof the class described, 'the combination with a closure havin upper and lower projecting portions, iix'ed eepers arranged to engage the projecting portions of the closure, a vertically-movable vpi'ri'tlecarrying the closure 'and having a spiral lportion and provided at the up'perend thereofwith a straight portion ,fand 'a' x'ed memberarranged to engage the straight 'andsipiral portions lof the pintle-rod t'o permit a limited di-rect vertical mo've'mentfor carrying the projecting portions into 'and 'out of 'engagement with 'the keepers and to rotate the pintle-rod 'for swinging the closure. Y, y l

21. In `a device 'of the class described, 'the combination witha swinging closure, ofa'verticall'y-movable pintle, 'means for rotating the pintle when the same is moved vertically, atflexible connection connected at one V'end with the pintle, a segment secured to the vother vend of the 1flexible connection, means for o' erating the segment to raise the pintle, and usible means for releasing the closure.

'5. In a device of the class described, 'the combination with a swinging 'clo"s`1'ire,l za verytically-movable pintle carrying the closure,

' means for rotating the pintle when the 'same f1 oo is moved vertically, a shaft designed to extend through a Wall, a segment mounted on the outer end of the shaft, a flexible connection extending from the segment to the pintle, an operating-lever connected with the inner end of the shaft, means for securing the operating-lever for holding the closure in its open position, and fusible means for releasing the closure.

6. In a device of the class described, the combination With a swinging closure, a vertically-movable pintle carr 'ng the closure, means for rotating the pint e when the same is moved vertically, a shaft designed to extend through a Wall, a segment mounted on the outer end of the shaft, a flexible connection extending from the segment to the pintle, an operating-lever connected with the inner end of the shaft, means forsecuring the operating-lever for holding the closure in its open position, and interiorly and exteriorly arranged fusible means for releasing the closure.

In testimony that I claim the foregoing as 

